Hi I am getting the following exception while calling the find method
public Collection findForums() throws FinderException,RemoteException;
java.rmi.MarshalException: CORBA BAD_PARAM 1330446342 Maybe; nested exception is:
java.io.NotSerializableException:
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.mapSystemException(Util.java:239)
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.wrapException(Util.java:591)
at javax.rmi.CORBA.Util.wrapException(Util.java:277)
at com.forum.ejb._AccessForum_Stub.getForums(Unknown Source)
at org.apache.jsp.test.testForum_jsp._jspService(testForum_jsp.java:55)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:102)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:282)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:263)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:210)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
at sun.reflect.GeneratedMethodAccessor111.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:246)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:499)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:268)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFil terChain.java:236)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterCha in.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.ja va:145)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain .java:141)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 220)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:109)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextVal ve.java:214)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 168)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:109)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:144)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:109)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:133)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:107)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:539)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:107)
at com.sun.enterprise.webservice.EjbWebServiceValve.invoke(EjbWebServiceValve.java :134)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:107)
at com.sun.enterprise.security.web.SingleSignOn.invoke(SingleSignOn.java:254)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:107)
at com.sun.enterprise.web.VirtualServerValve.invoke(VirtualServerValve.java:209)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:107)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:11 4)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:109)
at com.sun.enterprise.web.VirtualServerMappingValve.invoke(VirtualServerMappingVal ve.java:166)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.j ava:107)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:522)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:936)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:165)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:683)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnecti on(Http11Protocol.java:604)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:542)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:6 47)
at java.lang.Thread.run(Thread.java:536)
Caused by: java.io.NotSerializableException:
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.mapSystemException(Util.java:232)
... 55 more
Caused by: org.omg.CORBA.BAD_PARAM: vmcid: OMG minor code: 6 completed: Maybe
at com.sun.corba.ee.impl.logging.OMGSystemException.notSerializable(OMGSystemExcep tion.java:990)
at com.sun.corba.ee.impl.logging.OMGSystemException.notSerializable(OMGSystemExcep tion.java:1005)
at com.sun.corba.ee.impl.orbutil.ORBUtility.throwNotSerializableForCorba(ORBUtilit y.java:609)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_abstract_interface(CDR OutputStream_1_0.java:625)
at com.sun.corba.ee.impl.encoding.CDROutputStream.write_abstract_interface(CDROutp utStream.java:235)
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.writeAbstractObject(Util.java:402)
at javax.rmi.CORBA.Util.writeAbstractObject(Util.java:129)
at com.sun.corba.ee.impl.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.jav a:717)
at com.sun.corba.ee.impl.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.ja va:783)
at com.sun.corba.ee.impl.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutput Stream.java:197)
at com.sun.corba.ee.impl.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:56 6)
at com.sun.corba.ee.impl.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.ja va:152)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.j ava:222)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueWithVersion(ValueHandlerImp l.java:204)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:144)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.writeRMIIIOPValueType(CDROut putStream_1_0.java:773)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_ 1_0.java:822)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_ 1_0.java:836)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_abstract_interface(CDR OutputStream_1_0.java:620)
at com.sun.corba.ee.impl.encoding.CDROutputStream.write_abstract_interface(CDROutp utStream.java:235)
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.writeAbstractObject(Util.java:402)
at javax.rmi.CORBA.Util.writeAbstractObject(Util.java:129)
at com.sun.corba.ee.impl.io.IIOPOutputStream.writeObjectOverride(IIOPOutputStream.
java:131)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:274)
at java.util.ArrayList.writeObject(ArrayList.java:530)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.corba.ee.impl.io.IIOPOutputStream.invokeObjectWriter(IIOPOutputStream.j ava:598)
at com.sun.corba.ee.impl.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:56 4)
at com.sun.corba.ee.impl.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.ja va:152)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.j ava:222)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValueWithVersion(ValueHandlerImp l.java:204)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:144)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.writeRMIIIOPValueType(CDROut putStream_1_0.java:773)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_ 1_0.java:822)
at com.sun.corba.ee.impl.encoding.CDROutputStream_1_0.write_value(CDROutputStream_ 1_0.java:836)
at com.sun.corba.ee.impl.encoding.CDROutputStream.write_value(CDROutputStream.java :218)
at com.sun.corba.ee.impl.copyobject.ORBStreamObjectCopierImpl.copy(ORBStreamObject CopierImpl.java:39)
at com.sun.corba.ee.impl.copyobject.FallbackObjectCopierImpl.copy(FallbackObjectCo pierImpl.java:34)
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.copyObject(Util.java:646)
at javax.rmi.CORBA.Util.copyObject(Util.java:314)
at com.forum.ejb._AccessForum_Stub.getForums(Unknown Source)
... 52 more
My ejb-jar.xml file is
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee" version="2.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd"> <display-name>ForumJar</display-name>
<enterprise-beans>
<entity>
<ejb-name>ForumBean</ejb-name>
<local-home>com.forum.ejb.ForumHome</local-home>
<local>com.forum.ejb.Forum</local>
<ejb-class>com.forum.ejb.ForumBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.Integer</prim-key-class>
<reentrant>false</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>t_forum</abstract-schema-name>
<cmp-field>
<description>no description</description>
<field-name>forumDesc</field-name>
</cmp-field>
<cmp-field>
<description>no description</description>
<field-name>forumId</field-name>
</cmp-field>
<cmp-field>
<description>no description</description>
<field-name>updationDate</field-name>
</cmp-field>
<cmp-field>
<description>no description</description>
<field-name>userId</field-name>
</cmp-field>
<cmp-field>
<description>no description</description>
<field-name>forumTitle</field-name>
</cmp-field>
<cmp-field>
<description>no description</description>
<field-name>creationDate</field-name>
</cmp-field>
<primkey-field>forumId</primkey-field>
<security-identity>
<use-caller-identity/>
</security-identity>
<query>
<query-method>
<method-name>findForums</method-name>
<method-params/>
</query-method>
<ejb-ql>SELECT OBJECT(p) FROM t_forum p</ejb-ql>
</query>
<query>
<query-method>
<method-name>ejbSelectMaxFId</method-name>
<method-params/>
</query-method>
<ejb-ql>SELECT MAX(x.forumId) FROM t_forum x</ejb-ql>
</query>
</entity>
<session>
<ejb-name>AccessForumBean</ejb-name>
<home>com.forum.ejb.AccessForumHome</home>
<remote>com.forum.ejb.AccessForum</remote>
<ejb-class>com.forum.ejb.AccessForumBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
<ejb-local-ref>
<ejb-ref-name>ejb/ForumBean</ejb-ref-name>
<ejb-ref-type>Entity</ejb-ref-type>
<local-home>com.forum.ejb.ForumHome</local-home>
<local>com.forum.ejb.Forum</local>
<ejb-link>ejb-jar-ic1.jar#ForumBean</ejb-link>
</ejb-local-ref>
<security-identity>
<use-caller-identity/>
</security-identity>
</session>
</enterprise-beans>
<assembly-descriptor>
<method-permission>
<unchecked/>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>java.lang.Object</method-param>
</method-params>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>create</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>int</method-param>
</method-params>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>updateForum</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.sql.Date</method-param>
</method-params>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>findByPrimaryKey</method-name>
<method-params>
<method-param>java.lang.Integer</method-param>
</method-params>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>isIdentical</method-name>
<method-params>
<method-param>javax.ejb.EJBLocalObject</method-param>
</method-params>
</method>
</method-permission>
<method-permission>
<unchecked/>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>forumId</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>forumDesc</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>creationDate</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>findForums</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>forumTitle</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>updationDate</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>userId</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getPrimaryKey</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>remove</method-name>
</method>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getEJBLocalHome</method-name>
</method>
</method-permission>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>forumTitle</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>updateForum</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.sql.Date</method-param>
</method-params>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>forumDesc</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>remove</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>forumId</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>creationDate</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>updationDate</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>
<method>
<ejb-name>ForumBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>userId</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>